Influences On Asynchronous Oscillation - Siemens SINUMERIK 840D sl Function Manual

P5: Oscillation - only 840D sl
12.2 Asynchronous oscillation
12.2.1

Influences on asynchronous oscillation

Setting data
The setting data required for oscillation can be set with special language commands in the
NCK parts program, via the HMI and/or the PLC.
Feedrate
The feed velocity for the oscillation axis is selected or programmed as follows:
● The velocity defined for the axis as a positioning axis is used as the feed velocity. This
● When an oscillation movement is in progress, the feed velocity of the oscillation axis can
● The feed velocity can be influenced via the override (axial VDI signal and programmable).
● If Dry Run is active, the dry run velocity setting is applied if it is higher than the currently
● Velocity overlay/path overlay can be influenced by the handwheel.
● The oscillation axis can be moved with revolutional feedrate.
Revolutionary feedrate
The reversal feed can also be used for oscillation axes.
Reversal points
The positions of the reversal points can be entered via setting data before an oscillation
movement is started or while one is in progress.
● The reversal point positions can be entered by means of manual travel (handwheel, JOG
812
value can be programmed via FA[axis] and has a modal action. If no velocity is
programmed, then the value stored in machine data POS_AX_VELO is used (see
positioning axes).
be altered via setting data. It can be specified via the parts program and setting data
whether the changed velocity must take effect immediately or whether it should be
activated at the next reversal point.
programmed velocity.
Activation of the dry run feed entered in SD42100 $SC_DRY_RUN_FEED can be
controlled with SD42101 $SC_DRY_RUN_FEED_MODE. See
References:
/FB1/ Function Manual Basic Functions; Feedrates (V1)
See also the "Stop time effect" table.
References:
/FB2/ Function Manual, Extended Functions; Manual and Handwheel Travel (H1)
keys) before or in the course of an oscillation movement, regardless of whether the
oscillation movement has been interrupted or not.
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
Extended Functions